Hide encryption attachments

app/src/main/java/eu/faircode/email/AdapterMessage.java

@@ -1612,7 +1612,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
             List<EntityAttachment> a = new ArrayList<>();
             for (EntityAttachment attachment : attachments) {
-                boolean inline = (attachment.isInline() && attachment.isImage());
+                boolean inline = ((attachment.isInline() && attachment.isImage()) || attachment.encryption != null);
                 if (inline)
                     has_inline = true;
                 if (attachment.progress == null && !attachment.available)